Underwater Vehicle for Surveillance with Navigation and Swarm Network Communication

Karthik, Sabarish

doi:10.17485/ijst/2014/v7sp6.13

Cited by 17 publications

(7 citation statements)

References 6 publications

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“…It is also possible to have swarms of AUVs for covering larger areas while performing various tasks. Each AUV can leave temporarily the swarm to fulfill their individual assigned task while the swarm could autonomously reorient itself [61].…”

Section: Periodic Surveillance Network (Periodic Sn)mentioning

confidence: 99%

Sensors to Increase the Security of Underwater Communication Cables: A Review of Underwater Monitoring Sensors

Eleftherakis

Vicen

2020

Sensors

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Underwater communication cables transport large amounts of sensitive information between countries. This fact converts these cables into a critical infrastructure that must be protected. Monitoring the underwater cable environment is rare and any intervention is usually driven by cable faults. In the last few years, several reports raised issues about possible future malicious attacks on such cables. The main objective of this operational research and analysis (ORA) paper is to present an overview of different commercial and already available marine sensor technologies (acoustic, optic, magnetic and oceanographic) that could be used for autonomous monitoring of the underwater cable environment. These sensors could be mounted on different autonomous platforms, such as unmanned surface vehicles (USVs) or autonomous underwater vehicles (AUVs). This paper analyses a multi-threat sabotage scenario where surveying a transatlantic cable of 13,000 km, (reaching water depths up to 4000 m) is necessary. The potential underwater threats identified for such a scenario are: divers, anchors, fishing trawls, submarines, remotely operated vehicles (ROVs) and AUVs. The paper discusses the capabilities of the identified sensors to detect such identified threats for the scenario under study. It also presents ideas on the construction of periodic and permanent surveillance networks. Research study and results are focused on providing useful information to decision-makers in charge of designing surveillance capabilities to secure underwater communication cables.

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Section: Periodic Surveillance Network (Periodic Sn)mentioning

confidence: 99%

Sensors to Increase the Security of Underwater Communication Cables: A Review of Underwater Monitoring Sensors

Eleftherakis

Vicen

2020

Sensors

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“…When Du is small, u slightly changes. Linear hydrodynamic formula ( 3) is substituted into formula (2). By considering gravitational G z produced by the ballast tank, gravity moment M z , and righting moment M q q, we obtain the origin motion formula of the moving coordinate system on the vertical plane of the center of gravity as follows…”

Section: Establishment Of the Auv Depth Mathematical Modelmentioning

confidence: 99%

“…With the rapid development of AUV technology, AUVs have become increasingly important in rescue services, the military, resource survey, seabed mapping, pipeline inspection, fishery, and other fields. 2,3 The requirement for the AUV controller increases with the AUV application. Depth-changing movement is an important part of AUV motion control.…”

Section: Introductionmentioning

confidence: 99%

Autonomous underwater vehicle depth control based on an improved active disturbance rejection controller

Zhang

Liu

Wang

2019

International Journal of Advanced Robotic Systems

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Large fluctuation, large overshoot, and uncertain external disturbance that occur when an autonomous underwater vehicle is in deep motion are difficult to address using the traditional control method. An optimal control strategy based on an improved active disturbance rejection control technology is proposed to enhance the trajectory tracking accuracy of autonomous underwater vehicles in actual bathymetric operations and resist external and internal disturbances. First, the depth motion and mathematical models of an autonomous underwater vehicle and propeller are established, respectively. Second, the control rate of the extended state observer and the nonlinear error feedback of the traditional active disturbance rejection control are improved by using a new nonlinear function. The nonlinearity, model uncertainty, and external disturbance of the autonomous underwater vehicle depth control system are extended to a new state, which is realized by an improved extended state observer. Third, the improved nonlinear state error feedback is used to suppress residual errors and provide high-quality control for the system. Simulation and experimental results show that under the same parameters, the traditional active disturbance rejection control has a small overshoot, fast tracking ability, and strong anti-interference ability. The optimized active disturbance rejection control and traditional active disturbance rejection control are applied to the deep-variation motion of autonomous underwater vehicles. Results show that the proposed optimal control strategy is not only simple and feasible but also demonstrates good control performance.

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“…LV frameworks are ordinarily utilized for associating with homes and independent venture foundations. EHV frameworks are utilized for long-remove transmissions [7], and UHV frameworks, the most present day transmission frameworks are utilized for longseparate, appeal utilizes, for example, where the era assets are in one area, and the mechanical request is in another district of vast nations Assume expenses and assets were of no issue, and we wished to evacuate homeless people on a power transmission or dissemination line utilizing commotion dropping strategies. With this, we should have the capacity to play out the accompanying:…”

Section: Proposed Solutionmentioning

confidence: 99%

Protection Of Sequence and Communication Technology Equipment Using Smart Grid Application

Archenaa¹,

Anitha²

2018

IJEECS

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<p>This paper investigates the merger of energy utility circuits with that of the data and correspondence innovation (ICT) gear under the keen matrix and the security suggestions that this postures, and figures out what is the most extreme voltage that ICT hardware, composed as per IEC 62368-1 can specifically get to control framework circuits. The coming of the keen lattice, the modernization of the power framework utilizing current data and correspondence innovation methods, alongside the expansion of electric vehicle frameworks to the matrix, guarantees to change the business in uncommon manners. In this paper will be utilized as a part of this paper for deciding the level of security of ICT gear must be built to keeping in mind the end goal to be conveyed in higher-voltage application.</p>

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Underwater Vehicle for Surveillance with Navigation and Swarm Network Communication

Cited by 17 publications

References 6 publications

Sensors to Increase the Security of Underwater Communication Cables: A Review of Underwater Monitoring Sensors

Sensors to Increase the Security of Underwater Communication Cables: A Review of Underwater Monitoring Sensors

Autonomous underwater vehicle depth control based on an improved active disturbance rejection controller

Protection Of Sequence and Communication Technology Equipment Using Smart Grid Application

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